CN104727748B - A kind of jetting type twisting drag reduction oscillator - Google Patents
A kind of jetting type twisting drag reduction oscillator Download PDFInfo
- Publication number
- CN104727748B CN104727748B CN201510172360.4A CN201510172360A CN104727748B CN 104727748 B CN104727748 B CN 104727748B CN 201510172360 A CN201510172360 A CN 201510172360A CN 104727748 B CN104727748 B CN 104727748B
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- Prior art keywords
- pressure
- moment
- runner
- torque piston
- shell
- Prior art date
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- 239000012530 fluid Substances 0.000 claims description 49
- 230000000694 effects Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 14
- 239000011435 rock Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000000875 corresponding Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 208000002925 Dental Caries Diseases 0.000 description 3
- 206010010254 Concussion Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
Abstract
The invention discloses a kind of jetting type twisting drag reduction oscillator, it is related to drilling technology field.The oscillator includes top connection, outer shell, upper end cover, bistable fluidic, alternating pressure runner, moment of torsion cylinder, torque piston, bearing, fixture block, drill sleeve；The outer cylinder interior sets gradually the upper end cover, bistable fluidic, alternating pressure runner, moment of torsion cylinder, torque piston, bearing；The upper end of the outer shell is connected through a screw thread with the top connection, and lower end is connected by described fixture block with the drill sleeve.The embodiment of the present invention can extend the service life of drill bit by corresponding structure design, improve the efficiency of breaking rock of PDC drill bit.
Description
Technical field
The present invention relates to a kind of drilling technology field, and in particular to a kind of jetting type twisting drag reduction oscillator.
Background technology
The development that is worked with oil-gas exploration and deeply, in deep drilling and western many block hard formation drilling processes
In, rate of penetration is low, and the problem such as bit life is short is protruded very much.Such as in Sulige area, STRUCTURES IN EAST SICHUAN oil field, Tarim Basin
All encountered compared with hard formation in being worked Deng exploration and development drilling well, when creeping into above-mentioned stratum using PDC drill bit, especially in deep-well
Block sliding effect in drilling process extremely serious.The card slides effect and enables the irregular release of the elasticity of torsion of accumulation in drill string,
Causing the rock break-off process of PDC drill bit becomes extremely unstable, accelerates PDC drill bit is improper to damage, reduces the use longevity of PDC drill bit
Life, while can also influence the rate of penetration in drilling process, reduces drilling efficiency.
The content of the invention
In view of the above-mentioned problems, the embodiments of the invention provide a kind of jetting type twisting drag reduction oscillator, it is intended to solve existing
PDC drill bit service life in technology caused by the sliding effect of card is short, and the low technical problem of drilling efficiency.
To achieve the above object there is provided a kind of jetting type twisting drag reduction oscillator, the jetting type twisting drag reduction concussion
Device include top connection, outer shell, upper end cover, bistable fluidic, alternating pressure runner, moment of torsion cylinder, torque piston, bearing, card it is fast,
Drill sleeve；The outer cylinder interior sets gradually the upper end cover, bistable fluidic, alternating pressure runner, moment of torsion cylinder, moment of torsion and lived
Plug and bearing；The upper end of the outer shell is connected through a screw thread with the top connection, lower end by described card soon with the drill bit
Set connection；The upper end cover is located at the bistable fluidic upper end, and central passage and the entrance of the bistable fluidic connect
It is logical；The bistable fluidic is provided with two Efferent tubes, and the both sides of two Efferent tubes are respectively arranged with emptying road；The bistable jet member
The upper end UNICOM that two Efferent tubes of part pass through nozzle and the alternating pressure runner；Set vertically in the alternating pressure runner
Be equipped with two high pressure runners and a low pressure runner, the first ends of two high pressure runners respectively with the bistable fluidic
Two Efferent tubes be connected, the second end of two high pressure runners is connected with the moment of torsion cylinder；The torque piston is arranged on
In the moment of torsion cylinder；It is axially disposed in the middle part of the torque piston to have a center flow channels；The first end of the low pressure runner and institute
State the center flow channels connection of torque piston；Second end of the low pressure runner is connected with the emptying road of the bistable fluidic；
The drill sleeve is connected by screw thread with drill bit.
Further, the twice high-pressure fluid that the alternating pressure runner is exported by flow manifold to bistable fluidic
Shunted respectively, per pass high-pressure fluid is divided into relative twice high-pressure fluid, the four road high-pressure fluids formed after shunting exist
It is circularly and evenly distributed on alternating pressure flow channel cross-section, the fluid in relative position occurs simultaneously, and the stream of adjacent position
Body is alternately present, and the shunting road high-pressure fluids of Hou tetra-, which are entered in moment of torsion cylinder, acts on torque piston.
Further, the moment of torsion cylinder is fixed in outer shell, is provided with and alternating pressure stream between moment of torsion cylinder and torque piston
Four cavitys of the four road high-pressure fluid connections formed after road shunting, when the high-pressure fluid of a certain relative position of alternating pressure runner
During appearance, the effect of torque piston liquid body pressure starts to rotate along some direction, rotates to after certain position, the relative position
High-pressure fluid is disappeared, and the high-pressure fluid of another relative position replaces, and now torque piston is started edge by Fluid pressure effect
Opposite direction is rotated, and bearing is provided between the moment of torsion cylinder and torque piston so that torque piston rotates more flexible.
Further, the torque piston is connected by tooth shape structure with drill sleeve, when torque piston rotates, passes through tooth shape
Structural impact drill sleeve, driving drill sleeve rotation.
Further, the outer shell is connected with drill sleeve by fixture block.
Further, spring is provided between the fixture block and drill sleeve, bolt is provided between the fixture block and outer shell.
Further, sealing ring is provided between the alternating pressure runner and outer shell.
Further, sealing ring is provided between the outer shell and drill sleeve.
Compared with prior art, the embodiments of the invention provide a kind of jetting type twisting drag reduction oscillator, by providing one
Kind can reduce the sliding effect of card can improve the instrument of bit speed again, solve the PDC drill bit caused by the sliding effect of card and use the longevity
Life is short, and the low technical problem of drilling efficiency, and the embodiment of the present invention extends the service life of drill bit, accelerates PDC drill bit
Broken rock speed, improve drilling efficiency.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of jetting type twisting drag reduction oscillator provided in an embodiment of the present invention；
Fig. 2 is a kind of jetting type twisting drag reduction oscillator alternating pressure runner fairing cap structure provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is that a kind of jetting type twisting drag reduction oscillator alternating pressure runner base arrangement provided in an embodiment of the present invention shows
It is intended to；
Fig. 4 is that a kind of jetting type twisting drag reduction oscillator moment of torsion cylinder provided in an embodiment of the present invention shows with torque piston section
It is intended to；
Wherein, 1, top connection；2nd, outer shell；3rd, upper end cover；4th, bistable fluidic；41st, road is emptied；42nd, high pressure runner；
43rd, high pressure runner；5th, alternating pressure runner；51st, alternating pressure runner fairing cap；511st, low-pressure inlet 1；512nd, low-pressure inlet 2；
513rd, high pressure entry 1；514th, high pressure entry 2；515th, fairing cap center flow channels；52 alternating pressure runner bottom plates；521st, distribute
Mouth 1；522nd, shunting outlet 2；523rd, shunting outlet 3；524th, shunting outlet 4；525th, bottom plate center flow channels；6th, moment of torsion cylinder；7th, turn round
Square piston；8th, bearing；9th, fixture block；91st, spring；92nd, bolt；10th, drill sleeve；11st, sealing ring；12nd, sealing ring；13rd, cavity 1；
14th, cavity 2；15th, cavity 3；16th, cavity 4；17th, torque piston center flow channels.
Embodiment
Come to carry out the present invention detailed description below in conjunction with accompanying drawing.It should be appreciated, however, that accompanying drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in figure 1, Fig. 1 is a kind of jetting type twisting drag reduction oscillator provided in an embodiment of the present invention.Refer to Fig. 1,
Fig. 2, Fig. 3, Fig. 4, the jetting type twisting drag reduction oscillator include top connection, outer shell, upper end cover, bistable fluidic, alternation
Pressure runner, moment of torsion cylinder, torque piston, bearing, card are fast, drill sleeve；The outer cylinder interior sets gradually the upper end cover, bistable
Fluidic, alternating pressure runner, moment of torsion cylinder, torque piston and bearing；The upper end of the outer shell passes through spiral shell with the top connection
Line is connected, and lower end is connected with the drill sleeve soon by described card；The upper end cover is located at the bistable fluidic upper end,
Central passage is connected with the entrance of the bistable fluidic；The bistable fluidic is provided with two Efferent tubes, two Efferent tubes
Both sides are respectively arranged with emptying road；Two Efferent tubes of the bistable fluidic are upper by nozzle and the alternating pressure runner
End UNICOM；It is axially disposed in the alternating pressure runner to have two high pressure runners and a low pressure runner, it is described two high
Two Efferent tubes of the first end of runner respectively with the bistable fluidic are pressed to be connected, the second end of two high pressure runners
Connected with the moment of torsion cylinder；The torque piston is arranged in the moment of torsion cylinder；It is axially disposed in the middle part of the torque piston to have
One center flow channels；The first end of the low pressure runner is connected with the center flow channels of the torque piston；The of the low pressure runner
Two ends are connected with the emptying road of the bistable fluidic；The drill sleeve is connected by screw thread with drill bit.
Compared with prior art, the embodiments of the invention provide a kind of jetting type twisting drag reduction oscillator, by providing one
Kind can reduce the sliding effect of card can improve the instrument of bit speed again, solve the PDC drill bit caused by the sliding effect of card and use the longevity
Life is short, and the low technical problem of drilling efficiency, and the embodiment of the present invention extends the service life of drill bit, accelerates PDC drill bit
Broken rock speed, improve drilling efficiency.
The present invention is by top connection 1, outer shell 2, upper end cover 3, bistable fluidic 4, alternating pressure runner 5, moment of torsion cylinder 6, torsion
Square piston 7, bearing 8, fixture block 9, drill sleeve 10 are constituted；The upper end cover 1, bistable jet member are set gradually inside the outer shell 2
Part 4, alternating pressure runner 5, moment of torsion cylinder 6, torque piston 7 and bearing 8；The upper end of the outer shell 2 passes through spiral shell with the top connection 1
Line is connected, and lower end is connected by described fixture block 9 with the drill sleeve 10；The upper end cover 3 is located at the bistable fluidic 4
Upper end, central passage is connected with the entrance of the bistable fluidic 4；The bistable fluidic 4 is provided with two Efferent tubes, and two is defeated
The both sides engaged in this profession are respectively arranged with emptying road；Two Efferent tubes of the bistable fluidic 4 pass through nozzle and the alternating pressure
The upper end UNICOM of runner 5；It is axially disposed in the alternating pressure runner 5 to have two high pressure runners 513,514 and one low
Runner 515 is pressed, two Efferent tubes of the first ends of two high pressure runners 513,514 respectively with the bistable fluidic are connected
Logical, the second end of two high pressure runners is changed into 4 outlets 521,522,523,524,4 outlets at bottom plate 52
521st, 522,523,524 4 cavitys 13,14,15,16 respectively between the moment of torsion cylinder 6 and the torque piston 7 are connected；
The torque piston 7 is arranged in the moment of torsion cylinder 6；The middle part of torque piston 7 is axially disposed a center flow channels 17；Institute
The first end of low pressure runner is stated to connect with the center flow channels 17 of the torque piston；Second end of the low pressure runner with it is described double
The emptying road connection of steady fluidic；The drill sleeve 10 is connected (not shown) by screw thread with drill bit.
As the further improvement of the embodiment of the present invention, the alternating pressure runner 5 is by flow manifold to bistable jet
The twice high-pressure fluid that element 4 is exported is shunted respectively, and per pass high-pressure fluid is divided into relative twice high-pressure fluid, shunting
The four road high-pressure fluids formed afterwards are circularly and evenly distributed on the cross section of alternating pressure runner 5, the fluid in relative position
Occur simultaneously, and the fluid of adjacent position is alternately present, the shunting road high-pressure fluids of Hou tetra-, which are entered, acts on torsion in moment of torsion cylinder 6
Square piston 7.
As the further improvement of the embodiment of the present invention, the moment of torsion cylinder 6 is fixed in outer shell 2, and moment of torsion cylinder 6 is lived with moment of torsion
Four cavitys that the four road high-pressure fluids formed after being shunted with alternating pressure runner 5 are connected are provided between plug 7, when alternating pressure stream
When the high-pressure fluid of a certain relative position in road 5 occurs, the effect of the liquid body pressure of torque piston 7 starts to rotate along some direction, revolves
Go to after certain position, the high-pressure fluid of the relative position disappears, and the high-pressure fluid of another relative position replaces, now turned round
Square piston 7 is started to rotate in the reverse direction by Fluid pressure effect, and bearing 8 is provided between the moment of torsion cylinder 6 and torque piston 7, is made
Obtain torque piston 7 and rotate more flexible.
As the further improvement of the embodiment of the present invention, the torque piston 7 is connected by tooth shape structure with drill sleeve 10,
When torque piston 7 rotates, by tooth shape structural impact drill sleeve 10, driving drill sleeve 10 rotates.
As the further improvement of the embodiment of the present invention, the outer shell 2 is connected with drill sleeve 10 by fixture block 9.
As the further improvement of the embodiment of the present invention, spring 91, the card are provided between the fixture block 9 and drill sleeve 10
Bolt 92 is provided between block 9 and outer shell 2.
As the further improvement of the embodiment of the present invention, sealing ring is provided between the alternating pressure runner 5 and outer shell 2.
As the further improvement of the embodiment of the present invention, sealing ring is provided between the outer shell 2 and drill sleeve 10.
The present invention is operationally：Alternating pressure, the twice high pressure of output are produced when high-pressure fluid is by bistable fluidic 4
Fluid enters alternating pressure runner 5 by runner 42,43, and twice high-pressure fluid completes shape after shunting in alternating pressure runner 5
Cheng Sidao high-pressure fluids, the four roads high-pressure fluid is circularly and evenly distributed on the cross section of alternating pressure runner 5, in relative position
The fluid put occurs simultaneously, and the fluid of adjacent position is alternately present, while being provided with four between moment of torsion cylinder 6 and torque piston 7
The cavity being circularly and evenly distributed, the high-pressure fluid of relative position can enter the cavity of relative position.When the high pressure of relative position
When fluid enters the cavity of relative position, because moment of torsion cylinder 6 is fixed in outer shell 2 so that torque piston 7 is driven by high-pressure fluid
And rotated in moment of torsion cylinder 6 along a direction, now torque piston drives drill sleeve 10 by tooth shape structural impact drill sleeve 10
Rotate in same direction, when the high-pressure fluid of adjacent position enters the cavity of adjacent position, the high-pressure spray of script relative position
Body is changed into low-pressure fluid, and now torque piston 7 is driven by high-pressure fluid and rotated in another direction in moment of torsion cylinder 6, moment of torsion
Piston 7 drives drill sleeve 10 to rotate in the opposite direction, is so concatenated to form certain frequency by tooth shape structural impact drill sleeve 10
Circumferential reciprocal concussion.In the course of work, the low-pressure fluid discharged from moment of torsion cylinder 6 returns to bistable fluidic 4, and passes through row
Low pressure runner is entered back into after the empty entrance of road 41 low pressure chamber to discharge from drill sleeve 10 through center flow channels.
The present invention is due to taking above technical scheme, and it has advantages below：The present invention can pass through in drilling process
The high-pressure fluid driving torque piston of alternation back and forth shakes in moment of torsion cylinder, and the card that can reduce PDC drill bit slides effect, improves PDC
Bit operation environment, promotes PDC drill bit steady operation, extends the service life of drill bit, and accelerates PDC drill bit broken rock speed.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (6)
1. a kind of jetting type twisting drag reduction oscillator, it is characterised in that the oscillator includes top connection, outer shell, upper end cover, double
Steady fluidic, alternating pressure runner, moment of torsion cylinder, torque piston, bearing, fixture block, drill sleeve；The outer cylinder interior is set gradually
The upper end cover, bistable fluidic, alternating pressure runner, moment of torsion cylinder, torque piston and bearing；The upper end of the outer shell and institute
State top connection to be connected through a screw thread, lower end is connected by described fixture block with the drill sleeve；The upper end cover is located at described double
Steady fluidic upper end, central passage is connected with the entrance of the bistable fluidic；The bistable fluidic is defeated provided with two
Engage in this profession, the both sides of two Efferent tubes are respectively arranged with emptying road；Two Efferent tubes of the bistable fluidic pass through nozzle and described
The upper end UNICOM of alternating pressure runner；It is axially disposed in the alternating pressure runner to have two high pressure runners and a low pressure
Runner, two Efferent tubes of the first ends of two high pressure runners respectively with the bistable fluidic are connected, described two
Second end of high pressure runner is connected with the moment of torsion cylinder；The torque piston is arranged in the moment of torsion cylinder；The torque piston
Middle part is axially disposed a center flow channels；The first end of the low pressure runner is connected with the center flow channels of the torque piston；
Second end of the low pressure runner is connected with the emptying road of the bistable fluidic；The drill sleeve is connected by screw thread and drill bit
Connect；Sealing ring is provided between the alternating pressure runner and outer shell；Sealing ring is provided between the outer shell and drill sleeve.
2. a kind of jetting type twisting drag reduction oscillator according to claim 1, it is characterised in that the alternating pressure runner
The twice high-pressure fluid that bistable fluidic is exported is shunted respectively by flow manifold, per pass high-pressure fluid is divided into phase
To twice high-pressure fluid, the four road high-pressure fluids formed after shunting are circumferentially uniform point on alternating pressure flow channel cross-section
Cloth, the fluid in relative position occurs simultaneously, and the fluid of adjacent position is alternately present, and the shunting road high-pressure fluids of Hou tetra- enter
Enter and act on torque piston into moment of torsion cylinder.
3. a kind of jetting type twisting drag reduction oscillator according to claim 2, it is characterised in that the moment of torsion cylinder is fixed on
The four road high-pressure fluids formed after being shunted with alternating pressure runner are connected four are provided with outer shell, between moment of torsion cylinder and torque piston
Individual cavity, when the high-pressure fluid of a certain relative position of alternating pressure runner occurs, the effect of torque piston liquid body pressure starts
Rotate, rotated to after certain position along some direction, the high-pressure fluid of the relative position disappears, the high-pressure spray of another relative position
Body is replaced, and now torque piston is started to rotate in the reverse direction by Fluid pressure effect, the moment of torsion cylinder and torque piston it
Between be provided with bearing so that torque piston rotate it is more flexible.
4. according to a kind of any described jetting type twisting drag reduction oscillators of claim 1-2, it is characterised in that the moment of torsion is lived
Plug is connected by tooth shape structure with drill sleeve, when torque piston rotates, and passes through tooth shape structural impact drill sleeve, driving drill sleeve rotation
Turn.
5. according to a kind of any described jetting type twisting drag reduction oscillators of claim 1-2, it is characterised in that the outer shell with
Drill sleeve is connected by fixture block.
6. according to a kind of any described jetting type twisting drag reduction oscillators of claim 1-2, it is characterised in that the fixture block with
Spring is provided between drill sleeve, bolt is provided between the fixture block and outer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172360.4A CN104727748B (en) | 2015-04-13 | 2015-04-13 | A kind of jetting type twisting drag reduction oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172360.4A CN104727748B (en) | 2015-04-13 | 2015-04-13 | A kind of jetting type twisting drag reduction oscillator |
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| Publication Number | Publication Date |
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| CN104727748A CN104727748A (en) | 2015-06-24 |
| CN104727748B true CN104727748B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510172360.4A CN104727748B (en) | 2015-04-13 | 2015-04-13 | A kind of jetting type twisting drag reduction oscillator |
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| CN (1) | CN104727748B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708672B (en) * | 2016-07-14 | 2019-09-06 | 蔡银花 | A kind of circumferential direction axial vacuum impact speed-raising tool |
| CN106368609A (en) * | 2016-11-09 | 2017-02-01 | 西南石油大学 | Jet flow oscillating tool |
| CN106481273A (en) * | 2016-11-09 | 2017-03-08 | 西南石油大学 | Fluidic oscillation realizes the drilling tool of axial impact |
| CN110043191A (en) * | 2019-04-23 | 2019-07-23 | 西南石油大学 | It can produce the fluidic oscillation tool of axial compressive force pulse |
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| CN204677110U (en) * | 2015-04-13 | 2015-09-30 | 北京沃客石油工程技术研究院 | A kind of jetting type is turned round to drag reduction oscillator |
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| AU1174792A (en) * | 1991-01-24 | 1992-08-27 | Intech International Inc. | Flow pulsing apparatus for drill string |
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| CN2716483Y (en) * | 2004-05-26 | 2005-08-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Downhole vibrodrilling tool induced by hydraulic pulse |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104727748A (en) | 2015-06-24 |
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